SR5508

426.00 MHz One Port SAW Resonator • • • • Ideal for 426.00 MHz Transmitters Very Low Insertion Loss Quartz Stability Ultra Miniature Ceramic SMD Package (QCC8C) SR5508 Absolute Maximum Rating (Ta=25°C) Parameter CW RF Power Dissipation DC Voltage Operating Temperature Range Storage Temperature Range P VDC Rating 0 ±30 -10 ~ +60 -40 ~ +85 Unit dBm V °C °C TA Tstg Electronic Characteristics Parameter Frequency (25°C) Nominal Frequency Tolerance from 426.00 MHz Insertion Loss Quality Factor Unloaded Q-Value 50Ω Loaded Q-Value Temperature Stability Turnover Temperature Turnover Frequency Frequency Temperature Coefficient Frequency Aging Absolute Value during the First Year Sym fc Minimum NS 25 1.0 2.3 Typical 426.00 1.5 7,500 1,200 fc 0.032 19 53.3776 2.6176 2.6 Maximum NS ± 75 2.0 55 10 26 2.9 Unit MHz KHz dB °C KHz ppm/°C MΩ Ω µH fF pF 2 ∆fc IL Qu QL To fo FTC |fA| RM LM CM Co ppm/yr DC Insulation Resistance Between any Two Pins RF Equivalent RLC Model Motional Resistance Motional Inductance Motional Capacitance Shunt Static Capacitance NS = Not Specified Note: 1. The frequency fc is the frequency of minimum IL with the resonator in the specified test fixture in a 50Ω test system with VSWR ≤ 1.2:1. Unless noted otherwise, case temperature TC = +25°C±2°C. Frequency aging is the change in fC with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures above +65°C. Typically, aging is greatest the first year after manufacture, decreasing in subsequent years. Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency at any case temperature, TC, may be calculated from: f = fo [1 - FTC (TO - TC)2]. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance CO is the measured static (nonmotional) capacitance between input terminal and ground or output terminal and ground. The measurement includes case parasitic capacitance. 6. 2. 3. Derived mathematically from one or more of the following directly measured parameters: fc, IL, 3 dB bandwidth, fC versus TC, and Co. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. For questions on technology, prices and delivery, please contact our sales offices or e-mail to sales@vanlong.com. 7. 8. 4. 9. 5. 10. Phone: +86 10 6301 4184 © 2004 by Vanlong Technology Co., Ltd. Fax: +86 10 6301 9167 Email: sales@vanlong.com Web: http://www.vanlong.com SR5508 426.00 MHz One Port SAW Resonator Package Dimensions (QCC8C) Electrical Connections Terminals 2 6 4,8 1,3,5,7 Connection Terminal 1 Terminal 2 Case-Ground NC Package Dimensions Dimensions A B C D Nom (mm) 2.08 0.60 1.27 2.54 Dimensions E F G H Nom (mm) 1.20 1.35 5.00 5.00 Marking Equivalent LC Model and Test Circuit 1. R5508 - Part Code Frequency in MHz Date Code: Y : Last digit of year WW : Week No. Equivalent LC Model R 5508 426.00 2. 3. From 50Ω Source To 50Ω load YWW Test Circuit Typical Application Circuit Low Power Transmitter Application Local Oscillator Application Typical Frequency Response Temperature Characteristics fc = fo, Tc = To (f - fo)/fo (ppm) ∆T= Tc –To (°C) The curve shown above accounts for resonator contribution only and does not include oscillator temperature characteristics. Phone: +86 10 6301 4184 © 2004 by Vanlong Technology Co., Ltd. Fax: +86 10 6301 9167 Email: sales@vanlong.com Web: http://www.vanlong.com SR5508